This element represents Annual Facility Fee Receivable Description.

No definition available.

Name:	ROX_AnnualFacilityFeeReceivablesDescription
Namespace Prefix:	ROX_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of closing fees payable by the company.

+ References

No definition available.

+ Details

Name:	ROX_ClosingFeePayable
Namespace Prefix:	ROX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Payment of commitment fee during the period.

+ References

No definition available.

+ Details

Name:	ROX_CommitmentFee
Namespace Prefix:	ROX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Payment of monthly fee.

+ References

No definition available.

+ Details

Name:	ROX_MonthlyFacilityFee
Namespace Prefix:	ROX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The element represents the cash outflow a during the period for purchase of inventory.

+ References

No definition available.

+ Details

Name:	ROX_PaymentsToAcquireInventory
Namespace Prefix:	ROX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage of monthly fee on maximum principal amount credit facility.

+ References

No definition available.

+ Details

Name:	ROX_PercentageOfMonthlyFee
Namespace Prefix:	ROX_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of purchased inventory sublimit.

+ References

No definition available.

+ Details

Name:	ROX_PurchasedInventorySublimit
Namespace Prefix:	ROX_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Used Purchased Inventory Sublimit Amount To Acquire Inventory

+ References

No definition available.

+ Details

Name:	ROX_UsedPurchasedInventorySublimitAmountToAcquireInventory
Namespace Prefix:	ROX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

+ References

+ Details

Name:	us-gaap_ConvertibleLongTermNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-SubTopic 20
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-Subparagraph (b)(1)
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-Section S99
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-Subparagraph (SX 210.9-03(16))
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

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-SubTopic 20
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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-SubTopic 10
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-Paragraph 2
-Subparagraph (bbb)(2)
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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount payable to related parties classified as other, due within one year or the normal operating cycle, if longer.

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-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

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Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

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Name:	us-gaap_LongTermNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

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Name:	us-gaap_NotesPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The gross value of stock issued during the period upon the conversion of convertible securities.

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Balance Type:	credit
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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Notes Payable and Capital Lease - Schedule of Notes Payable and Credit Facility (Details) (Parenthetical)		1 Months Ended			12 Months Ended
	Dec. 31, 2009 USD ($)	Aug. 31, 2015 USD ($)	Oct. 31, 2013 USD ($) $ / shares	Aug. 31, 2011 USD ($)	Mar. 31, 2018 USD ($) shares	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2018 EUR (€)	Dec. 31, 2017 USD ($)	Oct. 31, 2017 USD ($)	Jan. 31, 2017 USD ($)
Notes payable, current					$ 176,148
Notes payable, noncurrent					$ 211,580	$ 211,580
Debt instrument, interest rate					5.00%	5.00%		5.00%
Accrued interest					$ 10,579	$ 10,579	$ 10,579
Purchased inventory sublimit amount to acquire inventory		$ 3,000,000
Due to other related parties, current					576,546	412,269
Payments to acquire inventory					7,945,841	6,900,819	$ 5,441,432
Line of credit facility, remaining borrowing capacity					2,395,038	5,866,876
Debt issuance costs, net					$ 99,065	$ 94,109
Debt conversion price percentage					5.00%	5.00%	5.00%
Debt converted into shares					$ 1,632,000
Debt converted into shares, shares \| shares					1,813,334
Convertible notes payable, noncurrent						$ 1,675,000
Debt maturity description					In April 2018, the Company entered into a First Amendment to the Subordinated Note to extend the maturity date on the Subordinated Note from March 15, 2019 until September 15, 2020.
Convertible Notes [Member]
Debt instrument, convertible, if-converted value in excess of principal					$ 50,000
Debt conversion price percentage					250.00%
Debt converted into shares					$ 1,632,000
Debt converted into shares, shares \| shares					1,813,334
Convertible promisory note principal amount					$ 50,000
Frost Gamma Investments Trust [Member]
Due to other related parties, current		150,000							$ 45,021	$ 65,406	$ 51,500
Frost Gamma Investments Trust [Member] \| Phillip Frost [Member]
Debt instrument, maturity date						Mar. 15, 2019
Debt instrument, interest rate						11.00%
Convertible notes payable, noncurrent						$ 20,000,000
Mark E. Andrews, III [Member]
Notes payable, noncurrent					50,000
Due to other related parties, current		50,000							15,007	21,802	17,167
Richard J. Lampen [Member]
Notes payable, noncurrent					50,000
Due to other related parties, current		100,000							30,014	43,604	34,333
Brian L. Heller [Member]
Due to other related parties, current		42,500							12,756	18,532	14,592
Alfred J. Small [Member]
Due to other related parties, current		$ 15,000							4,502	6,541	5,150
Dr. Phillip Frost [Member]
Notes payable, noncurrent					500,000
Glenn Halpryn [Member]
Notes payable, noncurrent					200,000
Dennis Scholl [Member]
Notes payable, noncurrent					100,000
Vector Group Ltd [Member]
Notes payable, noncurrent					$ 200,000
Equity method interest, percentage					5.00%			5.00%
Loan and Security Agreement [Member] \| Maximum [Member]
Line of credit facility, maximum borrowing capacity				$ 21,000,000
Loan and Security Agreement [Member] \| Credit Facility [Member]
Line of credit facility, interest rate during period					7.0062%
Line of credit facility, interest rate description				(a) the Prime Rate plus 3.00%, (b) the LIBOR Rate plus 5.50% and (c) 6.00%.
Loan and Security Agreement [Member] \| Credit Facility [Member] \| Maximum [Member]
Line of credit facility, maximum borrowing capacity				$ 21,000,000
Purchased Inventory Sublimit [Member]
Line of credit facility, interest rate during period					8.7562%
Line of credit facility, interest rate description				(a) the Prime Rate plus 4.25%, (b) the LIBOR Rate plus 6.75% and (c) 7.50%.	The monthly facility fee is 0.75% per annum of the maximum Credit Facility
Percentage of monthly fee					0.75%
Monthly facility fee					$ 2,000
Debt instrument, interest rate during period					8.7562%	8.25%	7.75%
Payments to acquire inventory									$ 900,425	$ 1,308,125	$ 1,030,000
Purchased Inventory Sublimit [Member] \| December 13, 2017 [Member]
Debt instrument, interest rate during period					8.50%
Purchased Inventory Sublimit [Member] \| February 28, 2018 [Member]
Debt instrument, interest rate during period					8.75%
Purchased Inventory Sublimit [Member] \| December 14, 2016 [Member]
Debt instrument, interest rate during period						7.75%
Purchased Inventory Sublimit [Member] \| March 15, 2017 [Member]
Debt instrument, interest rate during period						8.00%
Purchased Inventory Sublimit [Member] \| December 15, 2015 [Member]
Debt instrument, interest rate during period							7.50%
Purchased Inventory Sublimit [Member] \| June 14, 2018 [Member]
Debt instrument, interest rate during period					8.25%
Purchased Inventory Sublimit [Member] \| Maximum [Member]
Line of credit facility, maximum borrowing capacity				$ 7,000,000
Amended Agreement [Member]
Debt instrument, interest rate during period					7.0625%	6.50%	6.00%
Purchased inventory sublimit		Purchased Inventory Sublimit shall be limited to seventy percent (70%)
Proceeds from related party debt		$ 4,900,000
Closing fee payable		18,000
Commitment fee		$ 18,000
Amended Agreement [Member] \| June 14, 2018 [Member]
Debt instrument, interest rate during period					6.50%
Amended Agreement [Member] \| December 13, 2017 [Member]
Debt instrument, interest rate during period					6.75%
Amended Agreement [Member] \| February 28, 2018 [Member]
Debt instrument, interest rate during period					7.00%
Amended Agreement [Member] \| December 14, 2016 [Member]
Debt instrument, interest rate during period						6.00%
Amended Agreement [Member] \| March 15, 2017 [Member]
Debt instrument, interest rate during period						6.25%
Amended Agreement [Member] \| August 9, 2015 [Member]
Debt instrument, interest rate during period							6.00%
Amended Agreement [Member] \| December 15, 2015 [Member]
Debt instrument, interest rate during period							5.75%
Participation Agreement [Member]
Debt instrument, interest rate					11.00%			11.00%
Fourth Amendment [Member] \| Maximum [Member] \| May 2018 [Member]
Long-term line of credit					$ 23,000,000
Fourth Amendment [Member] \| Minimum [Member] \| May 2018 [Member]
Long-term line of credit					21,000,000
Note Purchase Agreement [Member] \| 5% Convertible Notes [Member]
Debt instrument, maturity date			Dec. 15, 2018
Debt instrument, interest rate			5.00%
Unsecured debt			$ 2,125,000
Debt instrument, convertible, conversion price \| $ / shares			$ 0.90
GCP Note [Member]
Notes payable, noncurrent	$ 211,580				211,580	$ 211,580
Debt instrument, maturity date	Apr. 01, 2020
Debt instrument, interest rate	5.00%
Accrued interest					10,579	10,579
Irish Bank [Member]
Line of credit facility, maximum borrowing capacity					$ 382,279
Line of credit facility, interest rate during period					1.70%
Notes payable, current					$ 126,148
Irish Bank [Member] \| Euro [Member]
Line of credit facility, maximum borrowing capacity \| €								€ 310,324
Notes payable, current \| €								€ 102,404
Credit Facility [Member]
Debt instrument, interest rate during period					3.25%
Annual facility fee receivables description					ACF also receives a collateral management fee of $1,000 per month (increased to $2,000 after the occurrence of and during the continuance of an Event of Default)
Line of credit facility, expiration date					Jul. 31, 2019
Long-term debt, gross					$ 18,604,962	$ 13,133,124